What’s the difference between DDR4 and other types of memory and can I use them interchangeably?

No, DDR4 memory is not compatible or interchangeable with other types such as DDR5, DDR3, and so on. Each memory type uses different slot designs, voltages, and architectures, so your system must support the memory type specifically.

What’s the difference between DIMM and SO-DIMM memory?

DIMM and SO-DIMM represent two different physical sizes of memory. DIMM is the larger type used in standard desktop computers. SO-DIMM is the smaller type used in laptops, mini PCs, and compact systems. They are not interchangeable.

What does "Non-ECC" mean and do I need "ECC" memory instead?

Non-ECC (non-error correcting) memory is required for most laptops and desktops. ECC is typically only used in servers or workstations and is not interchangeable with Non-ECC memory. If your system doesn’t mention ECC support, you need Non-ECC.

How do I know which speed to choose?

Each system has its own max supported speed. If the memory is faster than your system allows, it will automatically downclock to that max speed, meaning it's safe to buy faster memory. To confirm the max supported speed, refer to your system's manual

Is this compatible with my system or computer?

Refer to your system's manual to confirm the supported memory type, capacity, form factor, and ECC support. If you're unsure, contact our support team, we're happy to help you find the exact memory your system needs!

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A-Tech 8GB RAM Replacement for Hynix HMA81GU6AFR8N-UH | DDR4 2400MHz PC4-19200 1Rx8 1.2V UDIMM Non-ECC 288-Pin DIMM Memory Module

A-Tech 8GB RAM Replacement for Hynix HMA81GU6AFR8N-UH | DDR4 2400MHz PC4-19200 1Rx8 1.2V UDIMM Non-ECC 288-Pin DIMM Memory Module

Product ID: 137164600

Details

Brand
A-Tech
Computer Memory Size
8 GB
RAM Memory Technology
DDR4
Memory Speed
2400 MHz
Compatible Devices
Desktop

⚡DDR4 2400MHz high-speed

🔋1.2V low power consumption

🧩288-pin UDIMM compatibility

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Description

⚡ Upgrade your desktop’s brainpower — because speed is the new status symbol!

RELIABLE TESTED - Each module undergoes rigorous quality assurance for dependable, error-free operation.
BOOST YOUR WORKFLOW - Experience lightning-fast 2400MHz DDR4 memory that accelerates loading times and multitasking.
LIFETIME PEACE OF MIND - Backed by A-Tech’s limited lifetime warranty and US-based tech support for worry-free ownership.
PLUG PLAY COMPATIBILITY - Seamlessly fits into any 288-pin UDIMM slot for hassle-free upgrades.
ENERGY EFFICIENT PERFORMANCE - Operate cooler and longer with industry-standard 1.2V low voltage technology.

The A-Tech 8GB DDR4 2400MHz PC4-19200 UDIMM memory module is a high-performance, low-voltage (1.2V) RAM upgrade designed for desktop systems with 288-pin slots. It offers reliable, tested, and energy-efficient memory expansion with a lifetime warranty and dedicated US-based tech support, perfect for professionals seeking seamless multitasking and faster responsiveness.

Specifications

ASIN	B07SW7W5C8
Additional Features	Lightweight
Best Sellers Rank	#3,524 in Computer Memory
Brand	A-Tech
Column Address Strobe Latency	17
Compatible Devices	Desktop
Computer Memory Size	8 GB
Customer Reviews	4.8 out of 5 stars 13 Reviews
Data Transfer Rate	19200 Megabytes Per Second
Form Factor	DIMM
Manufacturer	A-Tech Components
Memory Speed	2400 MHz
Model Name	Trident Z5
Number of Pins	288
RAM Memory Technology	DDR4
RAM Size	8 GB
Special Feature	Lightweight
Voltage	1.2 Volts
Warranty Description	Limited Lifetime Warranty Covering Defects In Materials And Workmanship

Reviews

S**.

East to install, worked as promised.

Received quickly and corrected the memory issues I was having with my computer. Excellent purchase. Easy to install.

19.01.2026

K**.

Great

Worked perfectly on my HP G3 5i 3.4ghz computer . Now I have 16 gb dual channel memory

7.06.2024

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Buyer Protection · Full refund if your order doesn't arrive as described.

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